Combined check and stop valve.



E. S. BECK.

COMBINED CHECK AND sToP VALVE.

APPLICATION FILED JULY 24,1911.

Patented Mar. 5, 1912. C

ThulN L jui/566@ Snom/Lto @wi/Mmmm EDWIN S. BECK, 0F DUNCANNON, PENNSYLVANIA.

COMBINED CHECK AND STOP VALVE.

Specification of Letters Patent.

Application led July 24, 1911.

Patented Mar. 5, 1912.

Serial No. 640,277.

To all whom it may concern:

Be it known that I, EDWIN S. BECK, a citizen of the United States, residing at Duncannon, in the county of Perry and State of Pennsylvania, have invented a new and useful Combined Check and Stop Valve, of which the following is a specification.

The invention relates to a combined check and stop valve.

The object of the present invention is to improve the construction of check valves, and to provide a simple, efficient and comparatively inexpensive check valve, capable of reversal to arrange either end of the valve at the pressure side and to permit water or other fluid to iow in either direction.

A further object of the invention is to provide a check valve of this character, adapted to operate as a stop valve or cock, and also equipped with means for permitting water or other liquid under pressure to be cut off for enabling the check valve, the valve seat and the spring for actuating the same to be removed and repaired or replaced by a new part without breaking any of the pipe connections.

With these and other objects in view, the

invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawing Figure 1 is a front elevation of a combined check and stop valve, constructed in accordance with this invention. Fig. 2 is a longitudinal sectional view on the line 2--2 of Fig. 1. Fig. 3 is a similar view on the line 3-3 of Fig; 2.

Like numerals of reference designate corresponding parts in all the figures of the drawing.

In the accompanying drawing in which is illustrated the preferred embodiment of the invention, the combined check and stop valve comprises in its construction an outer valve casing l, an inner valve plug 2, and an intermediate cut-off sleeve 3, having a bearing in the valve casing and forming a bearing or seat for the valve plug 2. The

valve casing consists of a tapered 'annular body portion 4, having opposite tubular extensions 5 and 6, forming openings or passages 7 and 8, which are arranged diametrically opposite each other. The tubular extensions 5 and 6 of the body are ro'vided with polygonal wrench receiving anges 9, and are interior-ly threaded at 10 to receive the threaded ends of pipes, tubes, or other conduits.

The rotary cut-off sleeve, which is tapered, fits within the tapered annular body portion 4 of the valve casing, and it is open at its larger end to receive the valve plug 2, and it is provided at its smaller end with a wall 1l, and it has exterior threads 12 at the said smaller end to receive a nut 13. The nut 13, which bears against a washer 14, is adapted to hold the sleeve in tight contact with the valve casing, and is capable of taking up wear and of preventing leakage between the sleeve and the casing. The Washer 14 is interposed between the nut and the smaller end of the tapered annular body portion of the valve casing. The cut-ofi" sleeve is provided at diametrically opposite points in the plane of the passages of the valve casing with openings 15, which are normally arranged in register with the openings or passages 7 and 8 of the valve casing, but t-he cut-oi` sleeve is adapted to be rotated one quarter of a revolution to carry opposite imperforate portions to the openings or passages 7 and 8 to close the same and cut oft' the How of water or other fluid, when it is desired to remove the valve plug for the purpose ot repairing or renewing its check valve 16, or any of the c o-acting parts.

The valve plug 2, which is hollow, is provided at diametrically opposite points .with openings 17 and 18, which are located in the same transverse plane as the openings or passages of the rotary cut-off sleeve and the valve casing, and the valve plug 2 has a threaded stem or screw 19, extending outwardly from its inner smaller end 20. `The threaded stem or screw 19 extends through 24, which may be of square or any other polygonal shape to permit the valve plug to be readily turned by a. Wrench or other tool. The cut-off sleeve may be turned by any suit-- able means, and it is preferably provided with an indicating iingerfor pointer 25, secured to a peripheral flange 26 of the cutoff sleeve, and adapted to indicate the position of the openings of the cut-off sleeve, suit-able marks 27 being preferably provided on the valve casing to coperate with the pointer or indicator for designating the open and closed positions of the same The valve plug 2 is preferably enlarged interiorly at the opening 17 and is provided thereat with screw threads to receive a threaded portion 28 of a tubular valve seat 29, screwed into the threaded opening 17 and projecting into the valve plug and receiving the check valve 16. The check valve 16 is in the form of'a disk, and it is provided with a valve stem 30, which operates in a guide 31. The guide 31, which is tapered or conical, has a cylindrical eXteriorly threaded portion 32, which screws into the opening 18 of the valve plug. The opening 18 has interior screw threads, and the guide 31, which is hollow, projects into the valve plug and is provided with a central opening 33 for guiding the valve stem 30. It is also provided with a plurality of openings 34:, spaced from and arranged around the central opening for the passage of water or other fluid. The valve is also guided by wings 16a formed integral with the disk of the check valve 16 and extending into the tubular valve seat, as clearly illustrated in Fig. 2 of the drawing. The wings may be either three or four in number as desired, and they coperate with the stem and the guide in centering the valve. A. coiled spring 35, .which is disposed on the valve stem, is interposed bet-Ween the guide and the check valve for holding the latter normally seated. The threading of the tubular valve seat and the hollow conical guide enables the valve seat, the valve and the guide to be readily removed for repair, or to enable a worn or broken part to be replaced by a new piece.

The check valve is disposed transversely of the valve plug in the plane of the openings or passages of t-he valve casing, the rotary cut-off sleeve and the valve plug, and the latter is adjustable to arrange the valve seat at either side of the valve to permit a flow of water, or other fluid in either direction. The check valve will work in any position, and when employed in connection with injectors for feeding water to boilers, the check valve may be reversed to cause the boiler pressure to blow back and clear the injectors of any obstructions. The flow of water or other fluid pressure may be cut off by a quarter turn of either the cut-off sleeve or the valve plug, and should it become necessary to repair the check valve, the cut-oft' sleeve may be employed to close the openings of the valve casing. This will permit such repairs to be made without breaking any of the pipe connections.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A valve of the class described including a valve casing having opposite openings or passages arranged in the same transverse plane, a rotary cut-orf sleeve mountedwithin the casing and provided with opposite openings or passages arranged to register with the openings or passages of the casing, a valve plug mounted for rotary adjustment within the cut-off sleeve and provided with opposite openings and having a valve sea-t at one of the said openings, the openings of the valve plug being ar ranged to register with the openings or passages of the cut-off sleeve and the valve casing, the valve plug and the cut-oil sleeve being provided between their openings or passages with imperforate portions arranged to cover, respectively, the openings or passages of the cut-off sleeve and the openings or passages of the valve casing, and acheck ,valve disposed transversely of the valve plug and operating in the plane of the said openings or passages and coperating with the said valve seat and adapted to be reversed by the rotary movement of the valve plug.

2. A valve of the class described comprisinga valve casing having opposite openings, a rotary cut-off sleevey mounted for rotary movement in the valve casing and having opposite openings adapted to be moved into and out of register with the openings of the valve casing, a valve plug mounted for rotary movement in the cutoff sleeve and having opposite openings, a guide arranged at one of the openings of the valve plug, a tubular valve seat detachably secured in the other opening of the valve plug and extending into the same, and a transversely disposed checli valve co-acting with the tubular valve seat and having a stem slidable in the guide. l

3. A valve of the class described comprising a valve casing having opposite openings, a rotary cut-oil1 sleeve mounted for rotary movement in the valve easing and having opposite openings adapted to be moved into and out of register with the openings of the valve casing, a valve plug mounted for rotary movement in the cut-oli' sleeve and having opposite openings and provided at one of the openings with a valve seat, and a tapered hollow guide detachably secured in the other opening of the valve plug and projecting into the latter and provided at its apex with a guide opening and having an opening located at one side of the guide opening and forming a passage for Water or other fluid, and a check valve co-acting with the valve seat and having a stem slidable in the said guide opening.

4. A valve of the class described comprising a valve casing having opposite openings, a rotary cut-oi sleeve mounted for rotary movement in the valve casing and having opposite openings adapted to be moved into and out of register With the openings of the valve casing, a valve plug mounted for rotary movement in the cut-off sleeve and having opposite threaded openings, a tubular valve seat extending into the valve plug and having a threaded portion engaging the In testimony that I claim the foregoing'` as my own, I have hereto afixed my signature in the presence of two Witnesses.

EDWIN S. BECK. Witnesses:

FRANK W. MUTZABAUGH, EDYTHE M. MADER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

